PROCESSING DEVICE, PROCESSING METHOD, AND PROGRAM

The present invention provides a processing device (1) including a storage unit (112) that stores device-specific information in association with device identification information for identifying each of a plurality of devices, an authentication key request reception unit (101) that receives an authentication key request including the device identification information, an authentication key issuing unit (102) that issues the authentication key, a license key request reception unit (103) that receives a license key request including the device identification information and the authentication key, a license key issuing unit (104) that issues a license key, a user identification information registration unit (107) that stores the user identification information of the user who has presented the license key, in association with the device identification information associated with the license key, and a device control unit (111) that integrally controls the plurality of devices identifying a plurality of pieces of device identification information associated with the same user identification information.